Are you asking if anyone has or if anyone can? Anything is possible, I'm sure we could get a Yanmar 440 in our 770 hull if you wanted us too!

Do that and use a open bow and jockeyseats.... I saw your Bananashark, the video from red sea rally 2006. It was maybe little or much to light for that sea condition, but you made a good job, im impressed. Are you planning to compete red sea rally this year to? Who is the designer of the Banana Shark Hull?

About the first question.

1. What do you have, boat and engine that did 60 knots or close to?
2. What do you need to come to 60knots, in your rib?

6,5-8,0m rib...

I saw in Ribmagazine that a Goldfish make 59knots with 315 yanmar and bravo one.